Right now the only way to output the url query parameters with multiple values is to use the bracket notation, e.g.
$options = [
'query' => [
'tag' => ['one', 'two'],
],
];
is output as
?tag[0]=one&tag[1]=two
As discussed in 🐛 Url only outputs the last value of a query parameter Needs work , this is a PHP-ism and not a web standard. An external system can require an URI to be in the format of
?tag=one&tag=two
Add a new item in the Url's options array that will provide the ability to output multiple values of a query argument by repeating the parameter name.
A new url option multi_value_query_output with values default and repeat.
Added a way to output multi-valued query arguments by repeating the parameter name.
Needs work
11.0 🔥
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
The patch in comment
#19
✨
Output multiple values of a query param with repeating param name
Needs work
didn't apply on Drupal Core 10.0.9, so I've rerolled it.
Have not reviewed but changes should be within MRs pointed at 11.x